JPH02234390A - Distributed el element - Google Patents
Distributed el elementInfo
- Publication number
- JPH02234390A JPH02234390A JP1055727A JP5572789A JPH02234390A JP H02234390 A JPH02234390 A JP H02234390A JP 1055727 A JP1055727 A JP 1055727A JP 5572789 A JP5572789 A JP 5572789A JP H02234390 A JPH02234390 A JP H02234390A
- Authority
- JP
- Japan
- Prior art keywords
- distributed
- cut
- light
- moisture
- luminous sections
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000007789 sealing Methods 0.000 claims abstract description 7
- 230000008595 infiltration Effects 0.000 abstract description 2
- 238000001764 infiltration Methods 0.000 abstract description 2
- 238000009413 insulation Methods 0.000 abstract description 2
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 27
- 239000006185 dispersion Substances 0.000 description 9
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 239000011888 foil Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- -1 etc. Substances 0.000 description 3
- 229920001218 Pullulan Polymers 0.000 description 2
- 239000004373 Pullulan Substances 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 239000001913 cellulose Substances 0.000 description 2
- 229920002678 cellulose Polymers 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 235000019423 pullulan Nutrition 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 150000003445 sucroses Chemical class 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 239000004820 Pressure-sensitive adhesive Substances 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000000149 argon plasma sintering Methods 0.000 description 1
- JRPBQTZRNDNNOP-UHFFFAOYSA-N barium titanate Chemical compound [Ba+2].[Ba+2].[O-][Ti]([O-])([O-])[O-] JRPBQTZRNDNNOP-UHFFFAOYSA-N 0.000 description 1
- 229910002113 barium titanate Inorganic materials 0.000 description 1
- UUAGAQFQZIEFAH-UHFFFAOYSA-N chlorotrifluoroethylene Chemical group FC(F)=C(F)Cl UUAGAQFQZIEFAH-UHFFFAOYSA-N 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- NKZSPGSOXYXWQA-UHFFFAOYSA-N dioxido(oxo)titanium;lead(2+) Chemical compound [Pb+2].[O-][Ti]([O-])=O NKZSPGSOXYXWQA-UHFFFAOYSA-N 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005566 electron beam evaporation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- 150000002484 inorganic compounds Chemical class 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 238000007738 vacuum evaporation Methods 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は分散型ＥＬ素子に関し、さらに詳しくは任意
の形状に分割可能にした分散型ＥＬ素子に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a distributed EL device, and more particularly to a distributed EL device that can be divided into arbitrary shapes.
一般に、分散型ＥＬ素子は、第４図および第５図に示す
ように、背面電極１上に誘電層２と発光層３を積層し、
さらにその上に透明電極フィルム５を積層して、これら
を防湿フィルム６および７で封止するとともに、銅等の
金属をメッシュ状あるいはリードフレーム形状にしたリ
ード端子８および９を、それぞれ背面電極１および透明
電極フィルム５に接続して、防湿フィルム６および７の
シール部から外部へ水平方向に取り出すようにしてつく
られている．また、透明電極フィルム５上に形成された
例えば銀からなる集電層１２が発光層３内に含まれるよ
うにしている。（特開昭６２−１２２０９２号）
〔発明が解決しようとする課題〕
ところが、この種の従来の分散型ＥＬ素子は、背面電極
１上に誘電層２および発光層３を積層して形成される発
光部が一連に連続して形成され、発光部全体が一体的に
防湿フィルム６および７で封止されているため、分割す
ることができず、適宜形状に裁断して使用することがで
きない。Generally, a distributed EL element has a dielectric layer 2 and a light emitting layer 3 laminated on a back electrode 1, as shown in FIGS. 4 and 5.
Further, a transparent electrode film 5 is laminated thereon, and these are sealed with moisture-proof films 6 and 7, and lead terminals 8 and 9 made of metal such as copper into a mesh shape or a lead frame shape are respectively attached to the back electrode 1. It is connected to the transparent electrode film 5 and taken out horizontally from the sealed portions of the moisture-proof films 6 and 7 to the outside. Further, a current collecting layer 12 made of, for example, silver and formed on the transparent electrode film 5 is included in the light emitting layer 3. (Unexamined Japanese Patent Publication No. 62-122092) [Problems to be Solved by the Invention] However, this type of conventional distributed EL element is formed by laminating a dielectric layer 2 and a light emitting layer 3 on a back electrode 1. Since the light emitting parts are formed in a continuous series and the whole light emitting part is integrally sealed with the moisture-proof films 6 and 7, it cannot be divided and cannot be cut into an appropriate shape for use.
この発明はかかる現状に鑑み種々検討を行った結果なさ
れたもので、分散型ＥＬ素子の少なくとも一方が透明電
極である一対の電極間に、少なくとも発光層を同一平面
内に複数に設けて独立した複数の発光部を設けるととも
に、各発光部間に絶縁層を設けて絶縁し、これらを外周
から封止部材で封止することによって、分散型ＥＬ素子
内に独立して設けた複数の発光部を分割して使用するこ
とができるようにし、分散型ＥＬ素子を適宜形状に裁断
して使用することができるようにしたものである。This invention has been made as a result of various studies in view of the current situation, and includes at least a plurality of light-emitting layers provided in the same plane between a pair of electrodes, at least one of which is a transparent electrode, in a distributed EL element. By providing a plurality of light-emitting parts, providing an insulating layer between each light-emitting part for insulation, and sealing them from the outer periphery with a sealing member, a plurality of light-emitting parts can be provided independently within a distributed EL element. The dispersion type EL element can be cut into an appropriate shape and used.
以下、この発明の分散型ＥＬ素子の一実施例を示す第１
図ないし第３図に基づいて説明する。Hereinafter, a first embodiment showing an embodiment of the distributed EL element of the present invention will be described.
This will be explained based on FIGS. 3 to 3.
第２図において、１は背面電極であり、この上に誘電層
２および発光層３が独立して積層形成され、これら積層
された各誘電層２および発光層３間に絶縁層４が形成さ
れている。In FIG. 2, 1 is a back electrode, on which a dielectric layer 2 and a light emitting layer 3 are independently laminated, and an insulating layer 4 is formed between each of the laminated dielectric layers 2 and light emitting layers 3. ing.
５はこれら発光層３および絶縁層４上にさらに積層形成
された透明導電フィルムであり、この透明導電フィルム
５および背面電極１は、さらに防湿フィルム６および７
で包囲されて封止されている。Reference numeral 5 denotes a transparent conductive film that is further laminated on the light emitting layer 3 and the insulating layer 4, and the transparent conductive film 5 and the back electrode 1 are further layered on the moisture-proof films 6 and 7.
surrounded and sealed.
８は背面電極１に接続されたリード端子で、防湿フィル
ム６および７のシール部から外部へ水平方向に取り出さ
れ、また９は透明導電フィルム５に接続されたリード端
子で、防湿フィルム６および７のシール部から外部へ水
平方向に取り出されている。Reference numeral 8 denotes a lead terminal connected to the back electrode 1, which is taken out horizontally to the outside from the sealed portion of the moisture-proof films 6 and 7, and 9 denotes a lead terminal connected to the transparent conductive film 5, which is connected to the moisture-proof films 6 and 7. It is taken out horizontally to the outside from the seal part.
このようにして構成された分散型ＥＬ素子Ａは、第１図
の平面図に示すように、透明導電フィルム５と背面電極
１間に発光層３と誘電層２とを積層した発光部１０が、
絶縁層４を形成した封止部１１で碁盤目状のパターンで
多数配列して構成され、発光部ｌＯがそれぞれ独立して
分割可能に形成されている。As shown in the plan view of FIG. 1, the dispersion type EL element A constructed in this manner includes a light emitting section 10 in which a light emitting layer 3 and a dielectric layer 2 are laminated between a transparent conductive film 5 and a back electrode 1. ,
A large number of sealing parts 11 having an insulating layer 4 formed thereon are arranged in a checkerboard pattern, and the light emitting parts 1O are each formed to be independently divisible.
しかして、第３図に示すように、分散型ＥＬ素子Ａを足
形に裁断すると、リード端子８および９を交流電源に接
続し電圧を印加して発光させる際、最外周部分の発光部
１０が切断されたところは、水分の浸入によって数時間
で発光しなくなるが、他の切断されていない発光部１０
は正常に作動して発光するため、星形に発光する分散型
ＥＬ素子が得られる。従って、この種の分散型ＥＬ素子
は分割が可能で、適宜形状に裁断して使用することがで
きる。As shown in FIG. 3, when the distributed EL element A is cut into the shape of a foot, when the lead terminals 8 and 9 are connected to an AC power source and a voltage is applied to emit light, the light emitting part 10 at the outermost portion The cut part stops emitting light in a few hours due to moisture infiltration, but other uncut light emitting parts 10
operates normally and emits light, resulting in a dispersed EL element that emits light in a star shape. Therefore, this kind of dispersion type EL element can be divided and cut into an appropriate shape for use.
ここで、背面電極１はアルミ箔、ニッケル箔、ステンレ
ス箔等の金属箔およびこれらの金属箔とプラスチックフ
ィルムとの複合フィルムで形成され、この他、ＡＩ，Ａ
ｕ，Ｍｏ，Ｃｒ等の金属電極、さらにＩｎ．Ｏ． 、Ｓ
ｎＯ．などの金属酸化物電極が、真空蒸着法や抵抗加熱
法によっても形成される。Here, the back electrode 1 is formed of a metal foil such as aluminum foil, nickel foil, or stainless steel foil, or a composite film of these metal foils and a plastic film.
Metal electrodes such as u, Mo, Cr, etc., as well as In. O. , S
nO. Metal oxide electrodes such as the following can also be formed by vacuum evaporation or resistance heating.
また、誘電層２は、チタン酸バリウム、チタン酸鉛、二
酸化チタンなどの高誘電率無機化合物を、シアノエチル
化セルロース、シアノエチル化プルラン、シアノエチル
化サッカロース等の高誘電率結合剤樹脂、およびジメチ
ルホルムアミド、ノルマルメチル２−ビロリドン等の有
機溶剤とともに混合分散して誘電塗料を調製し、この誘
電塗料を背面電極１上に塗布、乾燥して形成される。The dielectric layer 2 is made of a high dielectric constant inorganic compound such as barium titanate, lead titanate, titanium dioxide, etc., a high dielectric constant binder resin such as cyanoethylated cellulose, cyanoethylated pullulan, cyanoethylated sucrose, etc., and dimethylformamide, A dielectric paint is prepared by mixing and dispersing it with an organic solvent such as normal methyl 2-pyrrolidone, and this dielectric paint is applied onto the back electrode 1 and dried.
さらに、発光層３は、ＺｎＳ，ＣｄＳなどからなる母材
にＣｕ．．Ｃ Ｉ，ＭｎＳＡ１，Ａｇなどの１種または
２種以上の元素を発光中心として付活した蛍光体を、シ
アノエチル化セルロース、シアノエチル化プルラン、シ
アノエチル化サッカロース等の高誘電率結合剤樹脂、お
よびジメチルホルムアミド、ノルマルメチル２−ビロリ
ドン等の有機溶剤とともに混合分散して発光塗料を調製
し、この発光塗料を誘電層２上に塗布、乾燥して形成さ
れる。Furthermore, the light emitting layer 3 is made of Cu. ．． A phosphor activated with one or more elements such as CI, MnSA1, Ag as a luminescent center is combined with a high dielectric constant binder resin such as cyanoethylated cellulose, cyanoethylated pullulan, cyanoethylated sucrose, etc., and dimethylformamide. , n-methyl 2-pyrrolidone, and other organic solvents to prepare a luminescent coating, and this luminescent coating is applied onto the dielectric layer 2 and dried to form the luminescent coating.
また、絶縁層４は、シリコーン系、合成ゴム系、アクリ
ル系などの感圧性接着剤、ポリオレフィン系、ポリアミ
ド系、ポリビニルブチラール系などの感熱性接着剤を、
背面電極１上に塗布、乾燥して形成される。The insulating layer 4 may be made of a pressure-sensitive adhesive such as a silicone-based, synthetic rubber-based, or acrylic-based adhesive, or a heat-sensitive adhesive such as a polyolefin-based, polyamide-based, or polyvinyl butyral-based adhesive.
It is formed by coating and drying on the back electrode 1.
透明導電フィルム５は、ポリエチレンテレフタレートな
どからなる透明なフィルム上に、インジウムースズ酸化
物、Ｉｎｚ ｏ３、Ｓｎａｐなどからなる透明導電膜を
、電子ビーム蒸着法やスパッタリング法によって形成す
るなどして得られたものが使用され、発光層３および絶
縁層４上に熱圧着するなどの方法で積層される。The transparent conductive film 5 is obtained by forming a transparent conductive film made of indium-tin oxide, Inzo3, Snap, etc. on a transparent film made of polyethylene terephthalate or the like by an electron beam evaporation method or a sputtering method. is used, and is laminated on the light emitting layer 3 and the insulating layer 4 by a method such as thermocompression bonding.
また、防湿フィルム６および７は、内側に接着剤層を付
設した３フッ化塩化エチレンなどの防湿フィルムが使用
され、これら防湿フィルム６および７を背面電極１およ
び透明導電フィルム５に熱圧着して封止される。この防
湿フィルム６および７は、一端にリード端子８および９
が取りつけられており、リード端子８は背面電極１に接
続され、またリード端子９・は透明導電フィルム５に接
続される。Further, the moisture-proof films 6 and 7 are made of trifluorochloroethylene or the like with an adhesive layer attached on the inside, and these moisture-proof films 6 and 7 are bonded to the back electrode 1 and the transparent conductive film 5 by thermocompression. sealed. The moisture-proof films 6 and 7 have lead terminals 8 and 9 at one end.
are attached, the lead terminal 8 is connected to the back electrode 1, and the lead terminal 9 is connected to the transparent conductive film 5.
なお、防湿フィルム６および７は、表面あるいは内面に
光が反射しやすいようにエンボス加工等が施されている
か、内部に防湿フィルムとは屈折率が異なる物質を混入
して光を散乱しやすくしてあるもののほうが、切断端面
まで発光が達するため好ましく使用される。実際に、光
を散乱しやすい防湿フィルム６および７を使用すると、
第３図に示すように、分散型ＥＬ素子Ａを星形に裁断し
たとき、最外周部分の発光部１０が切断されたところは
、使用後数時間で発光しなくなるが、防湿フィルム６お
よび７の光散乱効果のため、あたかも全面が光っている
ように見える。The moisture-proof films 6 and 7 are either embossed on the surface or inside surface to make it easier to reflect light, or have a substance mixed inside them with a refractive index different from that of the moisture-proof film to make it easier to scatter light. It is preferable to use a material with a diameter of 100 mm because the light emitted reaches the cut end surface. In fact, when moisture-proof films 6 and 7 are used, which tend to scatter light,
As shown in FIG. 3, when the dispersion type EL element A is cut into a star shape, the part where the light emitting part 10 at the outermost circumference is cut will no longer emit light after several hours of use, but the moisture-proof films 6 and 7 Because of the light scattering effect, it appears as if the entire surface is shining.
以上説明したように、この発明で得られた分散型ＥＬ素
子は、発光部を複数に独立して設けているため、一個の
分散型ＥＬ素子を分割して使用することができ、適宜形
状に裁断して使用することができる．As explained above, since the dispersion type EL element obtained by the present invention has a plurality of independent light emitting parts, one dispersion type EL element can be divided and used, and it can be shaped as appropriate. It can be cut and used.
第１図はこの発明の分散型ＥＬ素子の一実施例を示す平
面図、第２図は同分散型ＥＬ素子のＢ一Ｂ線一部切欠拡
大断面図、第３図は同分散型ＥＬ素子を裁断して得られ
た所定形状の分散型ＥＬ素子の平面図、第４図は従来の
分散型ＥＬ素子の平面図、第５図は同分散型ＥＬ素子の
Ｃ−Ｃ線断面図である。
１・・・背面電橿、２・・・誘電層、３・・・発光層、
４・・・絶縁層、５・・・透明導電フィルム、６．７・
・・防湿フィルム、８，９・・・リード端子、１０・・
・発光部、Ａ・・・分散型ＥＬ素子
第１図
Ａ分散型ＥＬ素子
第３図Fig. 1 is a plan view showing an embodiment of the dispersion type EL element of the present invention, Fig. 2 is a partially cutaway enlarged sectional view taken along line B-B of the same dispersion type EL element, and Fig. 3 is the same dispersion type EL element. FIG. 4 is a plan view of a conventional dispersion-type EL device, and FIG. 5 is a cross-sectional view taken along line C-C of the same dispersion-type EL device. . DESCRIPTION OF SYMBOLS 1... Rear electrode, 2... Dielectric layer, 3... Light emitting layer,
4... Insulating layer, 5... Transparent conductive film, 6.7.
... Moisture-proof film, 8, 9... Lead terminal, 10...
・Light emitting part, A... Dispersed EL element Figure 1 A Distributed EL element Figure 3
Claims (1)
、少なくとも発光層を同一平面内に複数に設けて独立し
た複数の発光部を設けるとともに、各発光部間に絶縁層
を設けて絶縁し、これらを外周から封止部材で封止した
分散型ＥＬ素子1. Between a pair of electrodes, at least one of which is a transparent electrode, at least a plurality of light-emitting layers are provided in the same plane to provide a plurality of independent light-emitting parts, and an insulating layer is provided between each light-emitting part to insulate them. Distributed EL element sealed from the outer periphery with a sealing member
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1055727A JPH02234390A (en) | 1989-03-07 | 1989-03-07 | Distributed el element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1055727A JPH02234390A (en) | 1989-03-07 | 1989-03-07 | Distributed el element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02234390A true JPH02234390A (en) | 1990-09-17 |
Family
ID=13006889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1055727A Pending JPH02234390A (en) | 1989-03-07 | 1989-03-07 | Distributed el element |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02234390A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001506054A (en) * | 1997-09-24 | 2001-05-08 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | Organic electroluminescent device |
| JP2010108982A (en) * | 2008-10-28 | 2010-05-13 | Toppan Forms Co Ltd | Electronic panel |
| WO2014065169A1 (en) * | 2012-10-24 | 2014-05-01 | コニカミノルタ株式会社 | Light-emitting apparatus and method for manufacturing same |
-
1989
- 1989-03-07 JP JP1055727A patent/JPH02234390A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001506054A (en) * | 1997-09-24 | 2001-05-08 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | Organic electroluminescent device |
| JP2010108982A (en) * | 2008-10-28 | 2010-05-13 | Toppan Forms Co Ltd | Electronic panel |
| WO2014065169A1 (en) * | 2012-10-24 | 2014-05-01 | コニカミノルタ株式会社 | Light-emitting apparatus and method for manufacturing same |
| JPWO2014065169A1 (en) * | 2012-10-24 | 2016-09-08 | コニカミノルタ株式会社 | Light emitting device and manufacturing method thereof |
| US9755166B2 (en) | 2012-10-24 | 2017-09-05 | Konica Minolta, Inc. | Luminescent device and method of manufacturing the same including forming a plurality of notches or slits in a substrate to enable planar light emittance in a curved state |
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